[PATCH V2 0/5] Huge pages for short descriptors on ARM
will.deacon at arm.com
Thu Apr 24 03:36:39 PDT 2014
On Thu, Apr 24, 2014 at 11:22:29AM +0100, Steve Capper wrote:
> On Wed, Apr 16, 2014 at 12:46:38PM +0100, Steve Capper wrote:
> Just a ping on this...
> I would really like to get huge page support for short descriptors on
> ARM merged as I've been carrying around these patches for a long time.
> Recently I've had no issues raised about the code. The patches have
> been tested and found to be both beneficial to system performance and
> There are two parts to the series, the first patch is a core mm/ patch
> that introduces some huge_pte_ helper functions that allows for a much
> simpler ARM (without LPAE) implementation. The second part is the
> actual arch/arm code.
> I'm not sure how to proceed with these patches. I was thinking that
> they could be picked up into linux-next? If that sounds reasonable;
> Andrew, would you like to take the mm/ patch and Russell could you
> please take the arch/arm patches?
> Also, I was hoping to get these into 3.16. Are there any objections to
Who is asking for this code? We already support hugepages for LPAE systems,
so this would be targetting what? A9? I'm reluctant to add ~400 lines of
subtle, low-level mm code to arch/arm/ if it doesn't have any active users.
I guess I'm after some commitment that this is (a) useful to somebody and
(b) going to be tested regularly, otherwise it will go the way of things
like big-endian, where we end up carrying around code which is broken more
often than not (although big-endian is more self-contained).
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